The plugin hints the browser which pages to download and render in the background. When a visitor clicks on a link the page loads instantly. All the resources are already downloaded and pre-rendered in advanced. If the page is already cached the workload for the server is small.

WordPress Speed Is The Mean To Better User Experience

Our goal is not to speed up WordPress or optimize every aspect of it. We want to improve user experience. We want to offer visitor a better way to read and enjoy the web. WordPress Instant Articles improved speed is the mean, not the goal.

User Experience Beyond WordPress With DNS Prefetching

While all modern browsers offer DNS Prefetching, there is a way to hint them for specific domains. That’s what WordPress Instant Articles does with HTML5 DNS Prefetch. The browser knows exactly which domains to pre-resolve before a user clicks on a link. The result is less waiting for network operations and better experience for users.